EP2536441B1 - Appareil médical, concentré et méthode de traitement de l'eau - Google Patents

Appareil médical, concentré et méthode de traitement de l'eau Download PDF

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Publication number
EP2536441B1
EP2536441B1 EP11705163.1A EP11705163A EP2536441B1 EP 2536441 B1 EP2536441 B1 EP 2536441B1 EP 11705163 A EP11705163 A EP 11705163A EP 2536441 B1 EP2536441 B1 EP 2536441B1
Authority
EP
European Patent Office
Prior art keywords
water
concentrate
treatment unit
admixing
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11705163.1A
Other languages
German (de)
English (en)
Other versions
EP2536441A1 (fr
Inventor
Bruno Pregenzer
Sebastian Geiger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEIGER, SEBASTIAN
PREGENZER, BRUNO
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Publication of EP2536441A1 publication Critical patent/EP2536441A1/fr
Application granted granted Critical
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Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/14—Dental work stands; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/186—Peroxide solutions

Definitions

  • the invention relates to a treatment unit for the dental treatment station, the use of an aqueous concentrate for addition to water required in such a treatment unit and a method for treating the water required in such a treatment unit.
  • water disinfection plays a major role in medical devices, for example in the field of dental treatment and oral surgery, in order to prevent possible transmission of germs by means of a water-based treatment liquid.
  • Several methods are known for treating and disinfecting the tap water used for a dental treatment unit on site. So the reveals DE 34 03 640 C2 a device for sterilizing a water-based treatment liquid by admixing a disinfectant liquid.
  • the DE 296 03 926 U1 discloses the killing of germs by the action of UV radiation and additionally the addition of hydrogen peroxide.
  • the DE 696 21 505 T2 relates to a treatment unit for the dental treatment station with a device for adding decalcifying agents and disinfectants.
  • the water supply for medical devices is subject to the requirements of the DVGW (German Gas and Water Association).
  • the corresponding technical regulations for example, prescribe measures by means of which the backflow of water contaminated with biological materials into the water supply should be prevented. This requirement does not apply in the case of a supply from a canister.
  • the water delivered to the patient via medical devices is also at least subject to the requirements of the industrial water ordinance and the limit values specified therein must not be exceeded under any circumstances.
  • softened water may be used to supply medical equipment using a Bottel solution.
  • Bottel solution is comparatively practical and also suitable for private practices, but the purchase of and filling with softened water is also somewhat complex and involves additional costs.
  • the invention is intended to reduce limescale formation in medical devices.
  • a treatment unit for the dental treatment station, which is connected to a water supply.
  • the treatment unit should have means for reducing the lime deposit and for disinfecting the water provided by the water supply.
  • the addition of complexing agents reduces the deposition of lime in pipes and other parts of the treatment unit according to the invention.
  • the lime separation is preferably prevented completely or essentially completely.
  • the "water supply” can be a central, preferably DVGW-compliant connection to the water network.
  • water can be obtained from a container.
  • non-softened water containing calcium or magnesium bicarbonate is provided.
  • the treatment unit has means for heating at least part of the treatment liquid. Since lime deposits preferentially occur at points that are heated, the softening of the incoming water is particularly advantageous in such treatment units.
  • the treatment unit has at least one storage container with an aqueous concentrate containing complexing agents and disinfectants and a mixing point.
  • the mixing point is used to add the concentrate to water provided by the water supply, or to inject the concentrate into a line carrying the water.
  • the presence of only one storage container and one mixing point means that the water softening does not cause any additional effort compared to previously known devices. Furthermore, the susceptibility to errors is particularly low.
  • the complexing agents comprise individual substances or combinations of substances selected from the group of polyphosphates, 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC) and low molecular weight polyacrylic acids.
  • PBTC 2-phosphonobutane-1,2,4-tricarboxylic acid
  • the complexing agent is added by the agents in substoichiometric amounts based on the calcium or magnesium ion concentration in the water, since when using polyphosphates, PBTC and low-molecular polyacrylic acids, a threshold effect occurs and the precipitation of lime is prevented by sub-stoichiometric addition.
  • PBTC is particularly preferred because when it is used, a threshold effect occurs and the complexes formed are stable under the desired conditions.
  • the disinfectant is hydrogen peroxide.
  • the combination of disinfectants and complexing agents does not show any deterioration in the germ-reducing properties with respect to the addition of disinfectants alone.
  • the function of the disinfectant and of the complexing agent does not influence one another if the combination is suitable, for example hydrogen peroxide and PBTC.
  • the treatment unit has no further means for reducing limescale separation or water softening. Accordingly, softening devices from the prior art, for example how Ion exchangers or reverse osmosis devices can be dispensed with and installation and maintenance costs can be saved.
  • the invention further relates to the use of an aqueous concentrate as described, which is suitable for metering into water required in a treatment unit according to the invention and / or is intended therefor.
  • the concentrate has the complexing agents described and reduces or prevents the lime separation from non-softened water.
  • the invention relates to a method for the treatment of water required in a treatment unit according to the invention, the treatment being intended to minimize lime deposition and also to have a germ-inhibiting effect.
  • the process is characterized by the addition of a concentrate as described above.
  • a dental treatment station with various treatment devices is used to demonstrate the advantages of a device according to the invention.
  • the treatment station comprises a treatment device with a cuspidor, a fountain, a tap for mouthwash, a supply line for cooling water and water supply lines for interchangeable hand tools of a dental treatment unit, such as drills or rinsing nozzles.
  • the treatment center is connected to a water pipe in accordance with DVGW guidelines, which supplies normal tap water in drinking water quality.
  • the treatment device has a device for sterilizing the supplied water, which is customary in the prior art, an H 2 O 2 concentrate from a storage container being added to the water coming from the supply line.
  • the device is completely decalcified and the H 2 O 2 concentrate is replaced with a concentrate consisting of a concentrated, aqueous solution of H 2 O 2 and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC).
  • PBTC 2-phosphonobutane-1,2,4-tricarboxylic acid

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Claims (5)

  1. Unité de traitement pour poste de soins dentaires, qui est raccordée à une alimentation en eau,
    l'unité de traitement comportant des moyens destinés à réduire le dépôt de calcaire provenant d'eau fournie par l'alimentation en eau et stériliser celle-ci,
    ces moyens comprenant au moins un réservoir avec un concentré aqueux contenant des agents complexants et des désinfectants et un point de mélange pour ajouter le concentré dans de l'eau fournie par l'alimentation en eau, et les agents complexants étant choisis dans le groupe des polyphosphates, de l'acide 2-phosphonobutane-1,2,4-tricarboxylique (PBTC) et des acides polyacryliques de faible poids moléculaire, et les moyens étant conçus pour ajouter les agents complexants en quantités sous-stœchiométriques.
  2. Unité de traitement selon la revendication 1, dans laquelle le désinfectant comprend un ou plusieurs peroxydes inorganiques et/ou organiques, en particulier du peroxyde d'hydrogène, des ions métalliques, en particulier des ions d'argent et des ions de cuivre, des alcools, des aldéhydes, des composés chlorés et/ou déchlorinateurs inorganiques et organiques, le cas échéant de la chloramine-T, de la guanidine, des biguanides, en particulier des biguanides organiquement modifiées et/ou des composés d'ammonium quaternaires (CAQ) ou des combinaisons de ceux-ci.
  3. Utilisation d'un concentré aqueux destiné à être ajouté à de l'eau requise dans une unité de traitement selon la revendication 1 ou 2, le concentré comportant un ou plusieurs agents complexants du groupe des polyphosphates, de l'acide 2-phosphonobutane-1,2,4-tricarboxylique (PBTC) et des acides polyacryliques de faible poids moléculaire et un ou plusieurs désinfectants, et les agents complexants étant adaptés pour réduire ou empêcher le dépôt de calcaire d'eau non adoucie par ajout sous-stœchiométrique.
  4. Procédé de traitement d'eau requise dans une unité de traitement selon la revendication 1 ou 2, le traitement ayant une action de réduction du dépôt de calcaire ainsi que d'inhibition des germes, comportant l'étape d'ajout d'un concentré, qui comporte un agent complexant du groupe des polyphosphates, de l'acide 2-phosphonobutane-1,2-4-tricarboxylique (PBTC) et des acides polyacryliques de faible poids moléculaire et un désinfectant, l'ajout étant effectué, en ce qui concerne la quantité de l'agent complexant, en quantité sous-stœchiométrique.
  5. Procédé selon la revendication 4, dans lequel l'appareil est alimenté en eau non adoucie contenant du bicarbonate.
EP11705163.1A 2010-02-15 2011-02-14 Appareil médical, concentré et méthode de traitement de l'eau Active EP2536441B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA221/2010A AT509444B8 (de) 2010-02-15 2010-02-15 Medizinisches gerät, konzentrat und methode zur wasseraufbereitung
PCT/EP2011/000676 WO2011098294A1 (fr) 2010-02-15 2011-02-14 Appareil médical, concentré et méthode de traitement de l'eau

Publications (2)

Publication Number Publication Date
EP2536441A1 EP2536441A1 (fr) 2012-12-26
EP2536441B1 true EP2536441B1 (fr) 2020-07-08

Family

ID=43743680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11705163.1A Active EP2536441B1 (fr) 2010-02-15 2011-02-14 Appareil médical, concentré et méthode de traitement de l'eau

Country Status (6)

Country Link
EP (1) EP2536441B1 (fr)
AT (1) AT509444B8 (fr)
DE (1) DE202011110693U1 (fr)
DK (1) DK2536441T3 (fr)
ES (1) ES2822139T3 (fr)
WO (1) WO2011098294A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014010900A1 (de) 2014-07-24 2016-01-28 Michael Saefkow Verfahren zur Desinfektion von Zahnbehandlungsstühlen während der Behandlung eines Patienten

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403640A1 (de) 1984-02-02 1985-08-08 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Vorrichtung zum entkeimen einer behandlungsfluessigkeit, insbesondere fuer einen zahnaerztlichen behandlungsplatz
IT1281769B1 (it) * 1995-03-27 1998-03-03 Castellini Spa Sistema per il trattamento di acqua in circuiti idrici di apparecchiature dentali
DE29603926U1 (de) 1996-03-02 1996-07-25 Finger, Johannes, 95448 Bayreuth Wasserentkeimungsgerät
DE19710255A1 (de) * 1997-03-13 1998-09-17 Henkel Ecolab Gmbh & Co Ohg Verwendung einer Lösung zur Desaktivierung von Endotoxinen
AU1458300A (en) * 1998-10-30 2000-05-22 Metrex Research Corporation Simultaneous cleaning and decontaminating compositions and methods
DE10203225A1 (de) * 2002-01-28 2003-07-31 Weigert Chem Fab Reinigung chirurgischer Instrumente
EP1709978A1 (fr) * 2005-04-06 2006-10-11 Chemische Fabrik Dr. Weigert GmbH & Co. KG. Nettoyage et désinfection d'instruments et d'appareils chirurgicaux et médicaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE202011110693U1 (de) 2015-10-29
DK2536441T3 (da) 2020-09-28
AT509444B1 (de) 2012-08-15
EP2536441A1 (fr) 2012-12-26
AT509444A1 (de) 2011-08-15
AT509444B8 (de) 2012-12-15
WO2011098294A1 (fr) 2011-08-18
ES2822139T3 (es) 2021-04-29

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